MIAMI — Miami Dolphins rookie Ryan Tannehill had a so-so showing Friday night, which was more than some of his offensive teammates could say.

In his first game as the Dolphins’ starting quarterback, Tannehill went 11 for 27 for 112 yards and one interception, and Miami lost to the Atlanta Falcons 23-6.

Four of Tannehill’s passes were dropped, including a potential 4-yard touchdown throw that Anthony Fasano bobbled in the end zone. Shaky pass protection was also a problem for Tannehill, who was sacked once, forced to run twice and hit several other times.

Tannehill was given the No. 1 job this week, but his promotion failed to inspire an offense that has sputtered this exhibition season. His best sequence was a 13-play, 78-yard drive that reached the 4, but his third-down pass went through Fasano’s hands, and Miami kicked a field goal.

Tannehill’s interception came on a tipped pass that was caught by safety Thomas DeCoud. The rookie’s quarterback rating was 37.9.

Miami’s Reggie Bush, who played only briefly, ran for 18 yards on the first play of the game and finished with 17 on five carries. Receiver is considered perhaps the thinnest area for the Dolphins, and they totaled seven dropped passes, including three by tight end Fasano.

The Falcons moved the ball well in their own territory. They started one possession at their 11, and on the first play Ryan hit Julio Jones deep for 49 yards. That led to one of three field goals by Matt Bryant.

Ryan led Atlanta 66 yards for a touchdown against backups. Michael Turner carried 10 times for 35 yards, and Jones made four catches for 90 yards.

The Dolphins’ No. 1 defense got off the field without giving up points for the first time this exhibition season by stopping the Falcons on downs on the opening series. Cameron Wake finished with 11/2 sacks for Miami.